Loom-shuttle



(No Model.)

H. P. BRIGGS. LOOM SHUTTLE.

No. 450,554. PatentedApr. 14,1891.

@mika/mow@ y mum/LCoz I A @21 @VCO/M4613 l UNITED STATES PATENT EEicE.

HENRICK VP. BRIGGS, OF NORTH ADAMS, MASSACHUSETTS.

LOOM-SHUTTLE.

SPECIFICATION forming part of Letters Patent No. 450,554, dated April 14, 1891.

Application filed September 29; 1890- Serial No. 366,490. (No model.)

To all whom it may concern:

Beit known that I, HENRICK P. Barcos, of North Adams, in the county of Berkshire and State of Massachusetts, have invented certain new and useful Improvements in LoomShut tles; and I do hereby declare that the following is afull, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters ot reference marked thereon, which form part of this specification, in which- Figure 1 isa top plan view of my complete shuttle. Fig. 2 is a longitudinal vertical sectional view through Fig. l. Fig. 3 is a transverse sectional viewl through Fig. l, looking toward one end of the shuttle, the wood block being removed.

The present invention is an improvement in loom-shuttles, and its principal object is to produce a shuttle thatl will possess the essentialsof lightness, strength, and durability, be practically frictionless, and will not splinter nor abrade. Further objects are to make the shuttle of skeleton form, but so that its Walls will be rigid and non yielding or springing,'and to employ, in connection with this skeleton shuttle-frame, it desired, end iillings of Wood or other light and easilyworked material, to which the bobbin-supporting device and thread-guides may be attached. p

The invention consists in novel details of construction and arrangement, as will be hereinafter clearly described and claimed.

The shuttle frame or shell is of ordinary form having conical ends, and it is open at top and bottom, being formed of opposite side walls A, that converge at their ends toward each other and are united by transverse integral end pieces B B, Which may be continued into the conical points C C; but the latter are, as shown, made of separate pieces of steel and secured to the end pieces-for instance, as shown by screw-threaded stems. The walls A A have4 inwardly-projecting iianges a ce at their lower edges, giving the walls an L shape in cross-section. These anges add stiffness and rigidity to the shuttlc-frame and extend the entire length of the walls, preferably as shown. Being at bottom, they do not interfere with the bobbin, and they increase the bearing-surface of thelower order to make the shuttle sufficiently light that it would render them too weak to endure the strain of usage. The ordinary metals bend and become distorted, and steel is too resilient and heavy. I make the frame of aluminum, and this metal possesses the desirable qualities of wood and of steel, being of great tensile strength, of small specific gravity, hard, frictionless, and unyielding. It is not easily abraded and will not splinter--the great fault of Wooden shuttles. Practically an aluminum shuttle is indestructible by ordinary usage. It can be substituted for Wooden shuttles without increasing the impact force or blow of the picker-sticks and is especially desirable for use in weaving very fine texture fabrics and equally well adapted for weaving the coarsest goods. Being nonoxidizable, an aluminum shuttle is not affected by moisture and will not corrode or rust, while ordinary metals like steel become incrusted, and their efiiciency is additionally impaired and the fabrics liable to be mildewed thereby. In short, it will be found that the aluminum shuttle possesses all the advantages of the wooden, metal, composition, or combination shuttles heretofore employed without a single attendant disadvantage. It can be cast or worked out integral, thus obviating riveting or jointing of parts. I provide its ends with steel points because the ends are battered by the impact of the picker-sticks, and it is more economical to make the points removable and hence renewable.

E F, Figs. 1 and 2, designate blocks secured by any suitable means in the ends of the frame, and preferably made of wood or other light easily-worked substance. To block E are attached the bobbin-supporting devices, and in block F is formed the thread-guides, as shown. The blocks make the shuttle lighter than if the space were entirely filled with metal, and block F being of such size as to about equipoise block E, the shuttle can be more equally balanced.

IOO

one end of the shell, and the non-metallic bobbin-snpporting block secured in the opposite end ot the Shell, Substantially as described.

In testimony that I claim the foregoingl as my own I a'ix my signature in presence of two witnesses.

IIENRICK l. IERIGGS.

Witnesses:

ARTHUR E. DowELL,

E. PARKER. 

